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Finding the Fourth Proportional to 99,447.44, 137,237.40 and 54,735.44

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Solution

The fourth proportional to 99,447.44, 137,237.40 and 54,735.44 is: 75,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,447.44 : 137,237.40 = 54,735.44 : x
  2. Step 2: Convert to fraction form
    99,447.44/137,237.40 = 54,735.44/x
  3. Step 3: Cross multiply
    99,447.44x = 137,237.40 × 54,735.44
  4. Step 4: Simplify right side
    99,447.44x = 7,511,749,473.46
  5. Step 5: Solve for x
    x = 7,511,749,473.46/99,447.44
  6. Step 6: Final answer
    x = 75,534.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.